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@ 2016-08-17T02:50:01Z

<?php

$result = array(
    'field1' => '',
    'field2' => ''
);

$result = array_filter($result);

$data = implode("::", $result);

Output
Performance
VLD
References
Branches

array_filter: documentation ( source)

preferences:dark modelive previewkey bindings

94.74 ms | 1970 KiB | 5 Q